For Philips PL-L 18W/840/4P power-saving four-pin lamp (white), natural color - AliExpress
Philips 008472 - MASTER PL-L 18W/840/4P Single Tube 4 Pin Base Compact Fluorescent Light Bulb - Walmart.com
2) REPLACEMENT BULBS FOR PHILIPS PL-L 18W/840/4P 18W | eBay
Philips PL-L 18W/840 4Pin 2G11 (made In Poland) HARD-TO-FIND LAMPS Kuala Lumpur (KL), Malaysia, Selangor, Pandan Indah Supplier, Suppliers, Supply, Supplies | Fastlite Electric Marketing
Philips MASTER PL-L 18W/840 4p au meilleur prix sur idealo.fr